US 10,891,494 B2
Device and a method for distinguishing between a heavy goods vehicle and a coach
Samuel Alliot, Courbevoie (FR); Grégoire Carrion, Courbevoie (FR); and Eric Guidon, Courbevoie (FR)
Assigned to IDEMIA IDENTITY & SECURITY FRANCE, Courbevoie (FR)
Filed by IDEMIA IDENTITY & SECURITY FRANCE, Courbevoie (FR)
Filed on Mar. 5, 2019, as Appl. No. 16/293,070.
Claims priority of application No. 18 52025 (FR), filed on Mar. 8, 2018.
Prior Publication US 2019/0278999 A1, Sep. 12, 2019
Int. Cl. G06K 9/00 (2006.01); G01P 3/36 (2006.01); G01P 13/00 (2006.01); G01V 8/20 (2006.01); G06K 9/32 (2006.01); G07B 1/00 (2006.01); G08G 1/015 (2006.01); G08G 1/054 (2006.01); G06K 9/20 (2006.01)
CPC G06K 9/00785 (2013.01) [G01P 3/36 (2013.01); G01P 13/00 (2013.01); G01V 8/20 (2013.01); G06K 9/00771 (2013.01); G06K 9/209 (2013.01); G06K 9/3258 (2013.01); G07B 1/00 (2013.01); G08G 1/015 (2013.01); G08G 1/054 (2013.01); G06K 2209/15 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A distinguishing device for distinguishing, between vehicles passing in front of the device, any heavy goods vehicle (HGV) from a coach including over at least a major portion of its length windows between a top side member and a bottom side member, the device being arranged to be placed at the side of a road and comprising:
a vertical stack of emitters of incident beams towards at least top halves of flanks of at least some of the vehicles; and
a vertical stack of receivers for detecting the beams that are reflected by the flanks of said vehicles;
a processor and memory implementing a calculation unit and an image processing unit, wherein
the calculation unit calculates the time that elapses between each emission of a beam and the detection of the corresponding reflected beam in order to establish an image of each vehicle flank; and
the image processing unit detects in the image the absence or the presence of a top side member revealing the absence or the presence of windows over at least a major portion of the length of the vehicle.